,Impedance-Matched Reduced Acoustic Cloaking with Realizable Mass and Its Layered Design

来源 :中国物理快报(英文版) | 被引量 : 0次 | 上传用户:haihanzhi
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We present an impedance-matched reduced version of acoustic cloaking whose mass is in a reasonable range. A layered cloak design with isotropic material is also proposed for the reduced cloak. Numerical calculations from the transfer matrix methods show that the present layered cloak can reduce the scattering of an air cylinder substantially.
其他文献
在最近几年,我国的经济水平产生了突飞猛进的增长,为了有效强化企业在经济市场中的竞争水准, 必须合理地把握人力资源,同时积极展现出人才的正向作用.薪酬管理以及职工激励策
期刊
迪姆是大作家歌德的弟子,勤奋努力, 规定自己每天读书八小时,写作五小时,发誓自己要像老师那样, 有一天写出一流的作品.只是他性格有点内向,不喜欢接触他不感兴趣的人.rn一天
期刊
Kinesin and dynein are two important classes of molecular motors which are responsible for active organelle trafficking and cell division.They call work togethe
期刊
The propagation of dust ion-acoustic wave in an inhomogeneous dusty plasma is studied by taking the dust charge fluctuation and collisions into account. It is s
期刊
期刊
We have performed low temperature resistivity p(T) and specific heat C(T) measurements on a superconducting polycrystalline Nb0.75Mg0.25B2 sample.The results in
期刊
我国的社会主义市场发展的环境是复杂的,各企业之间进行着激烈的竞争, 对于一家企业来说,想要在竞争激烈的市场中占有一席之地,就必须要优化人力资源薪酬管理,进而提升企业工
期刊
近期江苏省政府办公厅出台了《关于印发(江苏省职业技能提升行动实施方案(2019-2021年))的通知》,根据实施方案要求,通过三年时间大规模开展职业技能培训,从2019年到2021年实
期刊
Low frequency (in comparison to ion plasma frequency) ion-acoustic shocks and solitons in superdense electron-positron-ion quantum plasmas are studied.The quant
期刊
近年来,笔者所在企业坚持改革与管理双轮驱动, 三项制度改革、人才强企工程、员工绩效价值管理等重点改革任务有效推进,扎实开展了人才成长通道建设和人才盘点等工作,人才发
期刊